Fuel system for internal combustion engines

Details Fuel system for internal combustion engines Fuel system for internal combustion engines

1979-08-06

1981-02-10

Lazarus, Ronald H.

Internal-combustion engines

Charge forming device

Heating of combustible mixture

123557, F02M 3100

Patent

active

042495016

ABSTRACT:
A fuel system for internal combustion engines includes a fuel pump for supplying fuel to a carburetor through a fuel line and a heater for heating the fuel line at a position intermediate the fuel pump and carburetor for vaporizing and preheating the fuel prior to introduction into the carburetor. An adjustable air orifice is provided on the fuel line upstream of the heater. A bypass fuel line, which is connected to the fuel line upstream of the air orifice, provides direct communication to the carburetor when the engine is cold but includes a thermally controlled valve thereon which is operatively associated with the heater for closing the valve when the heater temperature is above a predetermined value and opening the valve when the heater temperature is below the predetermined temperature. The thermally controlled valve has an orifice therethrough which is adapted to provide limited fuel flow therethrough in both the closed and open positions for the valve.

REFERENCES:
patent: 1319718 (1919-10-01), Martin
patent: 2103947 (1937-12-01), Holmes
patent: 2104974 (1938-01-01), Dawes
patent: 2733698 (1956-02-01), Voigt

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